Results 51 to 60 of about 2,091,920 (156)

The combinatorially symmetric P-matrix completion problem [PDF]

open access: yes, 1996
An n-by-n real matrix is called a P-matrix if all its principal minors are positive. The P-matrix completion problem asks which partial P-matrices have a completion to a P-matrix.
Johnson, Charles R   +5 more
core   +1 more source

Structure Label Matrix Completion for PolSAR Image Classification

open access: yesRemote Sensing, 2020
Terrain classification is a hot topic in polarimetric synthetic aperture radar (PolSAR) image interpretation that aims at assigning a label to every pixel and forms a label matrix for a PolSAR image.
Qian Wu   +5 more
doaj   +1 more source

Low-Rank Matrix Completion via QR-Based Retraction on Manifolds

open access: yesMathematics, 2023
Low-rank matrix completion aims to recover an unknown matrix from a subset of observed entries. In this paper, we solve the problem via optimization of the matrix manifold. Specially, we apply QR factorization to retraction during optimization. We devise
Ke Wang   +3 more
doaj   +1 more source

Matrix Completion with Selective Sampling [PDF]

open access: yes2019 13th International conference on Sampling Theory and Applications (SampTA), 2019
4 pages, 4 ...
Christian Parkinson   +2 more
openaire   +2 more sources

MCCMF: collaborative matrix factorization based on matrix completion for predicting miRNA-disease associations

open access: yesBMC Bioinformatics, 2020
Background MicroRNAs (miRNAs) are non-coding RNAs with regulatory functions. Many studies have shown that miRNAs are closely associated with human diseases.
Tian-Ru Wu   +5 more
doaj   +1 more source

Maximum entropy methods, covariance completion and applications [PDF]

open access: yes, 2022
The aim of this thesis is to give an introduction to the maximum entropy methods in model fitting, focusing on the general framework proposed by Edwin T. Jaynes in 1957. Subsequently, Arthur P.
Barbiero, Luca
core  

Recent Developments on Matrix Completion [PDF]

open access: yes, 2021
146 pagesThe problem of Matrix Completion has been widely studied over the past decade. However, the vast majority of the solutions have proposed computationally feasible estimators with strong statistical guarantees for the case where the underlying ...
Sun, Daqian
core   +1 more source

A Novel Matrix Completion Model Based on the Multi-Layer Perceptron Integrating Kernel Regularization

open access: yesIEEE Access, 2021
Matrix completion has been widely used in image recovery and recommendation. The conventional matrix completion models based on multi-layer perceptron (MLP) only has local constraints on the observation data so that the completed matrix contains a lot of
Xuan Hu, Yongming Han, Zhiqiang Geng
doaj   +1 more source

Matrix completion problem [PDF]

open access: yes, 2017
Paper presented at the 4th Strathmore International Mathematics Conference (SIMC 2017), 19 - 23 June 2017, Strathmore University, Nairobi, Kenya.A real n n matrix is a nonnegative P0-matrix if its principal minors are nonnegative and all its entriesare ...
Tomno
core   +1 more source

Low Complexity Modeling of Cross-Spectral Matrix and Its Application in the Non-Synchronous Measurements of Microphones Array

open access: yesIEEE Access, 2021
The resolution related with the image quality of acoustic imaging using a microphone array is limited by the size and density of the array. However, non-synchronous measurements can exceed the constraints defined by measurements with a single fixed array.
Liang Yu   +5 more
doaj   +1 more source

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